| EMG 81 | |
| Manufacturer | EMG, Inc. |
| Period | 1979–present |
| Type | Active humbucker |
| Magnet type | Ceramic magnet |
| Output specifications | |
| Voltage (RMS), V | 1. EMG Inc is the current legal name of a company based in Santa Rosa, California which manufactures Guitar pickups. A pickup device acts as a Transducer that captures mechanical vibrations (usually from suitably equipped Stringed instruments such as the Electric guitar A conventional humbucker (or Humbucking pickup) is a type of Electric guitar pickup that uses two coils both generating string signal Ferrites are a class of Chemical compounds with the formula AB2O4 where A and B represent various metal Cations usually including In Mathematics, the root mean square (abbreviated RMS or rms) also known as the quadratic mean, is a statistical measure of the The volt (symbol V) is the SI derived unit of electric Potential difference or Electromotive force. 25 |
| Voltage (peak), V | 1. The volt (symbol V) is the SI derived unit of electric Potential difference or Electromotive force. 75 |
| Noise, dBV | -91 |
| Impedance, kΩ | 10 |
| Current, µA | 80 |
| Power requirements | |
| Power source | 9 V battery |
| Battery life, hours | 3000 |
| Sonic qualities | |
| Resonant frequency, Hz | 2250 |
EMG 81 is a famous active humbucker guitar pickup manufactured by EMG. The ohm (symbol Ω) is the SI unit of Electrical impedance or in the Direct current case Electrical resistance, The ampere, in practice often shortened to amp, (symbol A is a unit of Electric current, or amount of Electric charge per second The hertz (symbol Hz) is a measure of Frequency, informally defined as the number of events occurring per Second. A conventional humbucker (or Humbucking pickup) is a type of Electric guitar pickup that uses two coils both generating string signal A pickup device acts as a Transducer that captures mechanical vibrations (usually from suitably equipped Stringed instruments such as the Electric guitar EMG Inc is the current legal name of a company based in Santa Rosa, California which manufactures Guitar pickups. It is usually considered as a lead pickup for use in bridge position, paired with EMG 85 as a rhythm pickup in neck position(Zakk Wylde is famous for this configuration), however, it's not uncommon to see a guitar with two EMG 81s in both bridge and neck positions (for instance, Kirk Hammett's EMG-KH20, EMG-KH21 pickup sets which include 2 EMG 81 pickups for both neck and bridge positions). Lead guitar refers to the use of a Guitar to perform Melody lines instrumental fill passages, and Guitar solos within a song structure EMG 85 is a famous active Humbucker Guitar pickup manufactured by EMG. Rhythm guitar is the use of a Guitar to provide Rhythmic chordal Accompaniment for a singer or other instruments in a Musical ensemble Zakk Wylde (born Jeffrey Phillip Wielandt on January 14, 1967 in Bayonne, New Jersey) is an American musician who Kirk Lee Hammett (born November 18, 1962) is the Lead guitarist and a songwriter in the band Metallica and has been a member of the band The EMG 81 pickup is preferred as a lead pickup because of it's high output, and smooth control from having a rail magnet Rail magnets tend to sound smoother through guitar bends because they have a constant "rail" that runs through the pickup, while typical ceramic magnets have poles at each string that loose signal strength as the string bends away from the ceramic pole. A conventional humbucker (or Humbucking pickup) is a type of Electric guitar pickup that uses two coils both generating string signal
EMG 81 can be recognized by a humbucker form-factor and silver embossed EMG logo.
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EMG-81 was developed in 1979 along with the EMG 85, and, since 1981, it is the model that made EMG famous. EMG 85 is a famous active Humbucker Guitar pickup manufactured by EMG. Construction is similar to traditional U-shaped pickups, but there are no separate pole pieces: steel bars (rails) are used instead. This gives pickup more stable and linear sound.
Also, Alnico magnets were replaced with more powerful ceramic ones. While nominal output is the same as EMG 85, lower noise ratio gives more gain opportunity, so, ultimately EMG 81 is loudest of all EMG pickups. EMG 85 is a famous active Humbucker Guitar pickup manufactured by EMG.
As most other modern EMG pickups, EMG 81 has 3-wire quik-connect output, that comes as a 3-pin male connector on a pickup body and a 3-wire cable to connect it. Easy wire color code scheme that is the same for all EMG products simplifies soldering and installation.
Some guitarists increase the power source from 9v to 18v by adding another 9v battery wired up in series. Many players believe this creates more clarity, articulation and headroom. The pickup is rated at 27v so the mod is harmless and there are even some guitarists, albeit very few, that perform 27v mods although the improvement is questionable over the 18v mod.